参数资料
| 型号： | LTC4415EMSE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 16/20页 |
| 文件大小： | 0K |
| 描述： | IC DUAL 4A DIODES 16-MSOP |
| 标准包装： | 37 |
| 系列： | PowerPath™ |
| 应用： | 备用电池，高电流开关 |
| FET 型： | P 沟道 |
| 输出数： | 2 |
| 内部开关： | 是 |
| 电源电压： | 1.7 V ~ 5.5 V |
| 电流 - 电源： | 44µA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TFSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 16-MSOP |
| 包装： | 管件 |
LTC4415
TYPICAL APPLICATIONS
PRIMARY
POWER
SOURCE
IN1
EN1
IDEAL
LTC4415
OUT1
470k
LOAD
CLIM1
CLIM2
STAT1
WARN1
MICRO-
CONTROLLER
MN1
IRLML2402
EN2
WARN2
STAT2
AUXILLIARY
POWER
SOURCE
IN2
IDEAL
GND
OUT2
4.7μF
4415 F09
Figure 9. Microcontrolled PowerPath Monitoring and Control
POWER
SOURCE
IN1
EN1
IDEAL
LTC4415
OUT1
470k
LOAD
CLIM1
CLIM2
STAT1
WARN1
WARN2
STAT2
ENABLE
EN2
IN2
IDEAL
OUT2
4415 F10
GND
D1
1N5817
Figure 10. Parallel Diodes with Current Limit Foldback and Reverse Polarity Protection
output falls below a threshold set by the resistor divider
on EN1 pin. This arrangement results in current limit
foldback, reducing the current limit of the parallel diodes
to that of only diode 2 when the output voltage falls, thus
controlling power dissipation.
An optional Schottky diode can be inserted in series with
the chip ground as shown in Figure 10 to protect LTC4415
against input power source reverse polarity. The presence
of the Schottky shifts the UVLO and enable pin thresholds
by a voltage equal to the forward voltage drop of the
Schottky diode.
Power Backup Using Supercapacitors and Optional
Keep-Alive Cell
An application of dual backup power is shown on the last
page of this data sheet. Diode 2 provides power to the
triple DC/DC converter (LTC3521) when the primary input
power (V DD ) is available, possibly from a wall adapter. When
the input power falls below the supercapacitor voltage,
the supercapcitor provides power to the LTC3521. The
supercapacitor charger (LTC3625) provides a power failure
comparator output signal ( PFO ) when its input voltage
falls below a preset voltage defined by the resistive divider
on the PFI input. The PFO signal is available to start the
shutdown of high current applications. When the super-
capacitor discharges to a voltage level determined by the
resistor divider on EN1 input of LTC4415, the wired-AND
status signal of LTC4415 pulls up because neither of the
diode paths in LTC4415 are conducting and the coin cell
provides power through a back-to-back connected pair
of NFETs, M1 and M2. The wired-AND status signal is
available to signal that only low current circuits such as
real-time clock or memory remain enabled while operating
from the coin cell.
4415fa
16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4415IDHC#PBF | 功能描述:IC DUAL 4A DIODES 16-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4415IDHC#TRPBF | 功能描述:IC DUAL 4A DIODES 16-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4415IMSE#PBF | 功能描述:IC DUAL 4A DIODES 16-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4415IMSE#TRPBF | 功能描述:IC DUAL 4A DIODES 16-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4416EMS | 制造商:Linear Technology 功能描述:OR Controller P-Channel Dual-OUT 10-Pin MSOP |
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